snv: Standard normal variate (SNV)

In uwadaira/plsropt: Automatically perform partial least squares (PLS) regressions under different combinations of X-variable range and preprocessing method.

Description

The function snv applys the standard normal variate to the spectral data.

Usage

snv(x, range = c(1, ncol(x)))

Arguments

x	data.frame or matrix with spectra in columns.
range	range of x used for calculating mean value and sd value. Specify as the column numbers.

Value

spectral data applied the standard normal variate

Examples

data(peach)
nir.snv <- snv(peach$NIR)

uwadaira/plsropt documentation built on May 3, 2019, 2:39 p.m.